| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur P. Jacobs | Crew | Production | Producer |
 Ed Graves | Crew | Art | Art Direction |
 Hugh Lofting | Crew | Writing | Novel |
Jack Martin Smith | Crew | Art | Art Direction |
Jack Stubbs | Crew | Production | Unit Production Manager |
 Leslie Bricusse | Crew | Writing | Screenplay, Original Music Composer, Songs |
Mario Chiari | Crew | Art | Production Design |
Marjorie Fowler | Crew | Editing | Editor |
Mort Abrahams | Crew | Production | Associate Producer |
Ray Aghayan | Crew | Costume & Make-Up | Costume Design |
Ray Corbett | Crew | Directing | Second Assistant Director |
 Richard Fleischer | Crew | Directing | Director |
Robert Surtees | Crew | Camera | Director of Photography |
Samuel E. Beetley | Crew | Editing | Editor |
Stuart A. Reiss | Crew | Art | Set Decoration |
Walter M. Scott | Crew | Art | Set Decoration |
William Eckhardt | Crew | Production | Unit Production Manager |
Richard Lang | Crew | Directing | Assistant Director |
Paddy Carpenter | Crew | Directing | Second Assistant Director |
June Santantonio | Crew | Directing | Script Supervisor |
 Angelo Rossitto | Cast | Actor | Dwarf (uncredited) |
 Anthony Newley | Cast | Actor | Matthew Mugg |
 Arthur Gould-Porter | Cast | Actor | Sir Rupert (uncredited) |
Cyril Cross | Cast | Actor | Charlie (uncredited) |
Danny Rees | Cast | Actor | Juggler (uncredited) |
Edward Cast | Cast | Actor | Prison Guard (uncredited) |
 Frank Baker | Cast | Actor | Trial Spectator (uncredited) |
 Geoffrey Holder | Cast | Actor | William Shakespeare X |
Geoffrey Steele | Cast | Actor | Courtroom Spectator (uncredited) |
 Gilchrist Stuart | Cast | Actor | The Vicar (uncredited) |
 Ginny Tyler | Cast | Actress | Polynesia (voice) (uncredited) |
 Jack Raine | Cast | Actor | Vicar (uncredited) |
 Jesslyn Fax | Cast | Actress | Old Woman (uncredited) |
Lars Hensen | Cast | Actor | Minor Role (uncredited) |
 Muriel Landers | Cast | Actress | Mrs. Blossom |
 Norma Varden | Cast | Actress | Lady Fetherington |
 Peter Bull | Cast | Actor | General Bellowes |
Peter Crowcroft | Cast | Assistant Judge (uncredited) | |
Phyllis Coghlan | Cast | Actress | Courtroom Spectator (uncredited) |
 Queenie Leonard | Cast | Actress | Courtroom Spectator (uncredited) |
 Rex Harrison | Cast | Actor | Dr. John Dolittle |
 Richard Attenborough | Cast | Actor | Albert Blossom |
 Rufus | Cast | Actor | Dog (uncredited) |
 Samantha Eggar | Cast | Actress | Emma Fairfax |
 Ted Stanhope | Cast | Actor | Assistant Judge (uncredited) |
 William Dix | Cast | Actor | Tommy Stubbins |
Frank Radcliffe | Cast | Strong Man (uncredited) | |
 Portia Nelson | Cast | Sarah Dolittle | |
Theron Jackson | Cast | Boy (uncredited) | |
John Dolan | Cast | Fisherman (uncredited) | |
 Kendrick Huxham | Cast | Actor | Elderly Man (uncredited) |
Robert Cole | Cast | Roustabout (uncredited) | |
Bob Winters | Cast | Juggler (uncredited) | |
Eric Heath | Cast | Courtroom Spectator (uncredited) | |
Judy Chapman | Cast | Dancer (uncredited) | |
| Person | Type | Job | Role(s) |
